发明名称 DATA CARRIER DEVICE WITH TEST MEANS FOR TESTING THE ACCESS AUTHORIZATION OF A DATA READING DEVICE
摘要 A data carrier device (6; 59) for outputting data (SI; KI) stored in the data carrier device (6; 59) to at least one data reading device (1, 2, 3; 62) is provided with data storage means (28) for storing data (SI; KI) and fail count storage means (33) for storing a fail count (FVZ), password information storage means (32) for storing at least one password information item (GPWI, GPWI(BKI)), and test means (27; 66) for testing whether password information (PWI, PWI(BKI)) output to the data carrier device (6; 59) by a data reading device (1, 2, 3; 62) matches password information (GPWI, GPWI(BKI)) stored in the password information storage means (32), and for changing a fail count (FVZ), stored in the fail count storage means (33), in dependence on the test result. The data carrier device (6; 59) can output data (SI; KI) stored in the data storage means (28) to at least one data reading device (1, 2, 3; 62) if, in case the tested password information (PWI, PWI(BKI), GPWI, GPWI(BKI)) matches, the fail count (FVZ) stored in the fail count storage means (33) equals an access value. There is provided a random number generator (34) for selecting a random number (ZZ) from a random number range (ZB1, ZB2), and the test means (27; 66) being arranged to fix, in case the tested password information (PWI, PWI(BKI), GPWI, GPWI(BKI)) does not match, a selected random number (ZZ) as the fail count (FVZ).
申请公布号 WO0011623(A1) 申请公布日期 2000.03.02
申请号 WO1999EP05604 申请日期 1999.08.03
申请人 KONINKLIJKE PHILIPS ELECTRONICS N.V. 发明人 PROIDL, ADOLF
分类号 G06F12/14;G06F3/06;G06F3/08;G06F21/24;G06K17/00;G06K19/00;G06K19/10;G07F7/10;H04L9/32;(IPC1-7):G07F7/10 主分类号 G06F12/14
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